Dynamics of electron and nuclear motion in molecular hydrogen ion in strong laser field

The dynamics of electron and nuclear subsystems of the hydrogen molecular ion in the field of the femtosecond titanium-sapphire laser radiation are studied through the numerical modeling method. The dependence of the probability of the ionization and excitation of the H2+ different electron states on the radiation intensity and the molecule axis orientation relative to the direction of the wave electrical field polarization is analyzed. It is shown that the population of all the molecule electron states, except for the basic and the first excited ones, in the wide range of the radiation intensities is negligible. In such a situation, when the probability of the system ionization is also small, the dynamics of the nuclei oscillatory rotational motion in the molecule may be considered within the frames of two potential surfaces (terms). The possibility of the molecular axis effective orientation along the wave electrical field in absence of the system dissociation process is demonstrated